What kins of business use Linux?

[Todd And Margo Chester]

Hi All, I am a consultant who only works in two counties. I am currently working my way out of two jobs, which is normal.  Also means I have to do some cold calling, also normal.  And to facilitate that, I have made up a database of local businesses. I work with both Linux and Windows.  (The occasional Apple too, but you did not hear me admit to that.) I really do not feel like the *aggravation* of having to maintain any more Windows installations: low quality software that almost works and has to be fussed with 20 times more than a Linux installation.  And customer who are never really very happy with the way things turn out, or the expense. This may seems like a weird question, when I am sifting through my lists of businesses, does anyone have an tips as to what kinds of businesses prefer Linux?  I would like to directly target those kinds of businesses before settling from more Windows work. Sort of like graphics houses prefer Apple.  What kinds of business prefer Linux? Any tips would be greatly appreciated. Many thanks, -T